Medium severity5.3NVD Advisory· Published May 24, 2021· Updated Jun 17, 2026

CVE-2021-21000

Description

On WAGO PFC200 devices in different firmware versions with special crafted packets an attacker with network access to the device could cause a denial of service for the login service of the runtime.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Wago/PFC200llm-fuzzy
WAGO/Series PFC200 Controllerv5
Range: 750-823
WAGO/Series Ethernet Controllerv5
Range: 750-8202/xxx-xxx
Wago/750 823 Firmware
cpe:2.3:o:wago:750-823_firmware:*:*:*:*:*:*:*:*
Range: <fw08
Wago/750 829 Firmware
cpe:2.3:o:wago:750-829_firmware:*:*:*:*:*:*:*:*
Range: <fw15
Wago/750 831 Firmware
cpe:2.3:o:wago:750-831_firmware:*:*:*:*:*:*:*:*
Range: <fw15
Wago/750 832 Firmware
cpe:2.3:o:wago:750-832_firmware:*:*:*:*:*:*:*:*
Range: <fw08
Wago/750 852 Firmware
cpe:2.3:o:wago:750-852_firmware:*:*:*:*:*:*:*:*
Range: <fw15
Wago/750 862 Firmware
cpe:2.3:o:wago:750-862_firmware:*:*:*:*:*:*:*:*
Range: <fw08
Wago/750 880 Firmware
cpe:2.3:o:wago:750-880_firmware:*:*:*:*:*:*:*:*
Range: <fw16
Wago/750 881 Firmware
cpe:2.3:o:wago:750-881_firmware:*:*:*:*:*:*:*:*
Range: <fw15
Wago/750 882 Firmware
cpe:2.3:o:wago:750-882_firmware:*:*:*:*:*:*:*:*
Range: <fw15
Wago/750 885 Firmware
cpe:2.3:o:wago:750-885_firmware:*:*:*:*:*:*:*:*
Range: <fw15
Wago/750 889 Firmware
cpe:2.3:o:wago:750-889_firmware:*:*:*:*:*:*:*:*
Range: <fw15
Wago/750 890 Firmware
cpe:2.3:o:wago:750-890_firmware:*:*:*:*:*:*:*:*
Range: <fw08
Wago/750 891 Firmware
cpe:2.3:o:wago:750-891_firmware:*:*:*:*:*:*:*:*
Range: <fw08
Wago/750 893 Firmware
cpe:2.3:o:wago:750-893_firmware:*:*:*:*:*:*:*:*
Range: <fw08
Wago/750 8202 Firmware
cpe:2.3:o:wago:750-8202_firmware:*:*:*:*:*:*:*:*
Range: <03.06.19_\(18\)
Wago/750 8203 Firmware
cpe:2.3:o:wago:750-8203_firmware:*:*:*:*:*:*:*:*
Range: <03.06.19_\(18\)
Wago/750 8204 Firmware
cpe:2.3:o:wago:750-8204_firmware:*:*:*:*:*:*:*:*
Range: <03.06.19_\(18\)
Wago/750 8206 Firmware
cpe:2.3:o:wago:750-8206_firmware:*:*:*:*:*:*:*:*
Range: <03.06.19_\(18\)
Wago/750 8207 Firmware
cpe:2.3:o:wago:750-8207_firmware:*:*:*:*:*:*:*:*
Range: <03.06.19_\(18\)
Wago/750 8208 Firmware
cpe:2.3:o:wago:750-8208_firmware:*:*:*:*:*:*:*:*
Range: <03.06.19_\(18\)
Wago/750 8210 Firmware
cpe:2.3:o:wago:750-8210_firmware:*:*:*:*:*:*:*:*
Range: <03.06.19_\(18\)
Wago/750 8211 Firmware
cpe:2.3:o:wago:750-8211_firmware:*:*:*:*:*:*:*:*
Range: <03.06.19_\(18\)
Wago/750 8212 Firmware
cpe:2.3:o:wago:750-8212_firmware:*:*:*:*:*:*:*:*
Range: <03.06.19_\(18\)
Wago/750 8213 Firmware
cpe:2.3:o:wago:750-8213_firmware:*:*:*:*:*:*:*:*
Range: <03.06.19_\(18\)
Wago/750 8214 Firmware
cpe:2.3:o:wago:750-8214_firmware:*:*:*:*:*:*:*:*
Range: <03.06.19_\(18\)
Wago/750 8216 Firmware
cpe:2.3:o:wago:750-8216_firmware:*:*:*:*:*:*:*:*
Range: <03.06.19_\(18\)
Wago/750 8217 Firmware
cpe:2.3:o:wago:750-8217_firmware:*:*:*:*:*:*:*:*
Range: <03.06.19_\(18\)

cvss	0.345
epss	0.001
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000

CVE-2021-21000

Description

AI Insight

Affected products

Patches

Vulnerability mechanics

References

News mentions